Britain was hit by more blizzards that shut its biggest airports on the busiest weekend for travellers before Christmas and hit road and rail traffic. London Heathrow, the world's busiest international passenger airport, closed both runways until at least on Sunday morning to clear the snow, while London Gatwick also closed its runway for several hours. British Airways cancelled all short-haul departures from both airports, with all long-haul flights from Heathrow scrapped for most of the day.
National rail routes and trunk roads were also affected.